//------------------------------------------------------------------------------
// <copyright company="Telligent Systems">
//     Copyright (c) Telligent Systems Corporation.  All rights reserved.
// </copyright> 
//------------------------------------------------------------------------------

using System.Collections;
using System.Web.UI.WebControls;
using CommunityServer.Components;
using CommunityServer.Controls;

namespace CommunityServer.Blogs.Controls
{
	/// <summary>
	/// Displays a list of links for the curent blog
	/// </summary>
	public class LinkCategoryList : WeblogThemedControl
	{
		public LinkCategoryList()
		{
			//
			// TODO: Add constructor logic here
			//
		}

	    Repeater categories = null;

        public override void DataBind()
        {
            base.DataBind();

            ArrayList list  = LinkCategories.GetCategories( CurrentWeblog.SectionID, false, true, true);
            ArrayList filterList = new ArrayList(list.Count);
            foreach(LinkCategory lc in list)
            {
                if(lc.Links != null && lc.Links.Count > 0)
                {
                    foreach(Link l in lc.Links)
                    {
                        if(l.IsEnabled)
                        {
                            filterList.Add(lc);        
                            break;
                        }
                    }
                    
                }
                    
            }

            categories.DataSource = filterList;
            categories.DataBind();
        }

        /// <summary>
        /// Attach Repeater
        /// </summary>
        protected override void AttachChildControls()
        {
            categories = FindControl("Categories") as Repeater;
            categories.ItemCreated +=new RepeaterItemEventHandler(categories_ItemCreated);

            DataBind();
        }


        private void categories_ItemCreated(object sender, RepeaterItemEventArgs e)
        {
            switch ( e.Item.ItemType ) 
            {
                case ListItemType.Item:
                case ListItemType.AlternatingItem:
                case ListItemType.SelectedItem:

                    LinkCategory lc = e.Item.DataItem as LinkCategory;

                    IText catTitle = TextControlHelper.Create(e.Item.FindControl("CategoryTitle"));
                    if(catTitle != null)
                        catTitle.Text = lc.Name;

                    Repeater links = e.Item.FindControl("Links") as Repeater;
                    links.ItemCreated +=new RepeaterItemEventHandler(links_ItemCreated);
					links.DataSource = lc.Links;
                    links.DataBind();

                    break;
            }
        }

        private void links_ItemCreated(object sender, RepeaterItemEventArgs e)
        {
            switch ( e.Item.ItemType ) 
            {
                case ListItemType.Item:
                case ListItemType.AlternatingItem:
                case ListItemType.SelectedItem:

                    Link link = e.Item.DataItem as Link;

                    HyperLink hl = e.Item.FindControl("Link") as HyperLink;
                    if(hl != null)
                    {
                        if(link.IsEnabled)
                        {
                        
                    
                            hl.Text = link.Title;
                            hl.NavigateUrl = link.Url;
                            if (!Globals.IsNullorEmpty(link.Rel))
                                hl.Attributes.Add("rel", link.Rel);
                            if (!Globals.IsNullorEmpty(link.Description))
                                hl.Attributes.Add("title", link.Description);
                        }
                        else
                        {
                            hl.Visible = false;
                        }
                    }
                    break;
            }
        }
    }
}
